Mixed machinist tool collection consisting of 17 individual straight flute chucking reamers. Crafted from durable High-Speed Steel (HSS) with diverse marking profiles, featuring prominent USA manufacturers like APT. Individual cutting sizes span a wide internal diameter measurement range, including visible fractional markings such as 9/16. Engineered with straight shanks designed for drill press spindles, lathe chucks, or standard production milling equipment interfaces.